Many of the prices in Tripoli unlike Beirut will be in Lebanese Lira, although they do take US dollars as well. The prices here are more likely to be displayed in the Hindu numerical form (what we would consider as arabic numbers), the arabic numeral system is actually the system that we use and think of as the Latin system. So i might be handy to brush up on your numbers before you go...
Beautifully set up, this shop has an extremely wide variety of spices and more that you might want to take home with you in order to make all that local food you've had on your trip. Beyond the spices they also sell perfumes. I found the staff very helpful, though not heavy on the English speaking.
What to buy: spices and perfumes
What to pay: not a lot really
Located just a little bit north of the Al-Burtasiya Mosque, Souq Al-Haraj is thought to have been built on the site of a Crusader church. As far as merchandise, this souq contains a little of everything and seems more for the locals looking for everyday items.
This souq is what I think is the most visually appealing in Tripoli. Selling gold and a lot of it, there are numerous shops to see or buy something at. Congested in the same area, if you stumble upon it by accident, there'd be no question if you were there.
What to buy: jewelry
What to pay: depends on what you purchase
Besides sweets, Tripoli is famous for it's production of soap. Dyed and perfumed in different varieties, it's worth grabbing some to take home. Prices initially start at LL1,000 per bar normally.
What to buy: soap
What to pay: depends on what you are buying
The main souqs in Tripoli are amazing areas where you can find just about anything, the city is more conservative than Beirut, but it is just as busy. Be careful when wondering around because it is easy to get lost when you go around in the souqs.
What to buy: definitely buy some scarfs or hijabs, they are extremely beautiful. Also, try some of the candy they have there, especially the qdameh, (look like round pink and white captain crunch cereal), they are dried chick peas that are coated.
What to pay: scarfs- best I could get was 8,000LL (USD 5.33)
All inside the Khan there are small shops and large stalls selling olive-oil soaps from the factory on the premises
What to buy: Many types of soap: the traditional ones in square shape with different "flavours" and smells, and round ones, used after the bath, to massage and moistorise your skin.
What to pay: about 4 dollars for a nice box of 4 soaps. 2 dollars for a round massage soap
It's lovely to walk through the old Khans and souqs in the Old City of Tripoli. The atmosphere is very authentic, nearly medieval. You can discover nice goods to buy or to look at.
In Tripoli are also many modern shopping streets with many fancy shops.
So, there is a lot of choice for everybody..